Improved method-of secubiig cuttebs to sickle



@nitth tetes zttmt @ffice C. S. W'LLAMSN, OF COVERT, NEW* YRK.'V

Lafer@ Patent No, 63,350, (metz Mme 26, ism.

'IMPROVED METHOD '01?' SEGURINGVGUTTERS T0 SIGKLE-BARS.

TO ALL WHOM IT'MAY CONOERN:

Be it known that I, C. S. WILLLAMSON, of'Covert, inthe county of Seneca, and State of New York, have invented a new au'd'improvedMode of Securing Teeth to the Sickle-Bars of Harvesters; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part ot' this specification, in whichv Figures 1 and 3 represent plan or top views of a sickle or cutter-bar with a cutter or tooth attached according to my invention. f I

Figure 2, an'inverted plan of'a sickle or cutterlmrl with a cutter or tooth attached.

vFigures'g, and 6, rear views of figs. 1, 2, and 3. A Y

Similar letters of reference indicate corresponfing parts.

This inventionhas for its object theattaching of teethto the sickle-bars of grain and' grass harvesters in 'such a. manner that they may be readily detached4 when necessary for the 'purpose et' being ground or to have new ones applied, Aand also readily attached to the sickle-har.

A, gsi 1 and 4re'presents n sicklen cutter-bar constructed cftlle'u'snal dimensions, and having egrcove, a, made in its upper surface with oblique sides, so 4that said groove will be wider at its front than at its rear end. The sides of this groove are inclined so as te form a dove-tail, as shonn clearly in iig. 4. vB is a cutter 'or tooth,-constructed with 'a shank or tang, b, oftap'er form corresponding to the suape of the groeve, and the sides of the shank or tangb'are inclined to correspond to the inclination of the sides of the groove a, sc that the shank or tang b may be fitted in a and prevented'from rising or moving vertically out therefrom, as will be understood by referring to' g.4. The shank is prevented from moving longitudinally out from the groove va, by a screw, c, which passes vertically through the shank or tang b into the cutteror sickle-har A. In gs.

2 and 5 the same mode of attachment is shown, with the lexeption that the'groove a ismade in the under sicie of the sickle or cutter-bar A., the cutter or-tootll 'B being seein-eti to the under side of the bar. In figs. 3. and 6 the tanga of the cntter'or tooth isvcovered by metal bari; therlatterebeing secured by screws to the top or upper surface of A. 'The shank or tangb, at its junction with the rear of the cutter or tooth, is of'less width than the latter so as to leave a shoulder, e, at each side to abut against the front Aedge ofthe sickle or cutter-bar.

Having thusiglescribed my invention, what I claim as new, and desire togseeure by Letters Patent, isf- The cutter B, having shoulders e, resting against the sickle-bar A, with tapering shank c, itting in groove a of the sickle-bar, forming a dove-tail joint, in the manner described for the purpose specitcad.l

` e. s. WILLIAMSON.

Witnesses:

A. MURPHY, 'Gea W. MURPHY. 

